small lump on boa after vaction

[Ronin]

Ive shrunk photos as small as still being visible and it still wont let me upload but, there is a single small swollen area by the neck of my snake with a very small amount of skin showing, Im still looking for a vet In the NOVA area that can handle reptiles as im a bit worried because this was not there when I left. I can confirm its not mites or parasites, should I be worried or will this handle it self?